Safety Investigation Authority
The Safety Investigation Authority of Finland (SIAF[1] or SIA,[2] Finnish: Onnettomuustutkintakeskus, lit. Accident Investigation Center, shortened to OTKES; Swedish: Olycksutredningscentralen) is the accident investigation authority of Finland. It investigates all major accidents, and all aviation, maritime, and rail accidents and incidents.[3] SIAF is located within the Ministry of Justice,[3] and is headquartered in Helsinki, Finland.[4]


Head office of the Safety Investigation Authority of Finland
The SIAF was previously known in English as the Accident Investigation Board of Finland.[5]
Organization
    
The SIAF consists of five investigation branches: aviation, maritime, rail, other accidents, and exceptional events. The SIA has appointed a chief investigator to each.[6]
| Investigation branch | Description | Chief investigator | 
|---|---|---|
| Aviation | The investigation of incidents and accidents regarding aviation in Finland.[7] | Ismo Aaltonen | 
| Maritime | The investigation of accidents and dangerous situations that take place on Finnish territorial waters or in which a Finland-based vessel is involved.[8]  | 
Risto Haimila | 
| Rail | The investigation of especially hazardous accidents that happen either in rail, metro, or tram traffic, such as level crossing accidents, rolling stock fires, and train collisions.[9]  | 
Esko Värttiö | 
| Other accidents | The Other accidents-branch investigates serious accidents that pose a risk to life or that cause significant economic or environmental harm.[10] | Kai Valonen | 
| Exceptional events | Exceptional events are events of a non-accidental nature, in which a severe risk to life and society is posed. The SIAF has investigated four of such events during its history: the Jokela school shooting (2007), Kauhajoki school shooting (2008), death of 8-year-old Eerika (2012), and Turku stabbing (2017).[11] | 

This two tachographs were retrieved by the Safety Investigation Authority from the Konginkangas bus disaster in 2004
References
    
- "M2013-02 ms FINNARROW contact with quay in Holyhead 16 February 2013." Onnettomuustutkintakeskus. 20 February 2013. Retrieved on 12 May 2013.
 - "SIA - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 - "Role and function". Accident Investigation Board Finland. Retrieved 28 October 2010.
 - "Accident Investigation Board Finland – In English". Accident Investigation Board Finland. Retrieved 28 October 2010.
 - "Annual Report 2009." Accident Investigation Board of Finland. Retrieved on 11 May 2013.
 - "Organisation - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 - "Aviation - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 - "Marine - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 - "Rail - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 - "Muut onnettomuudet - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 - "Exceptional events - Onnettomuustutkintakeskus". www.turvallisuustutkinta.fi. Retrieved 2017-11-20.
 
External links
    
- Safety Investigation Authority
 - Safety Investigation Authority (in Finnish)
 - Safety Investigation Authority (in Swedish)
 - Accident Investigation Act (373/1985) (in Finnish) (Archive)
 
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